AI agents call get_firewall_settings to retrieve information from Firegex without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns firewall configuration metadata (loopback, established connections, ICMP, mDNS settings, etc.) without modifying, executing, or destroying any data. It is a read-only introspection operation with minimal blast radius if misused by an AI agent—the worst outcome would be information disclosure of existing firewall configuration.
From the tool's definition Tool name 'get_firewall_settings' and description 'Read the firewall meta-settings' explicitly indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Read the firewall meta-settings (loopback, established, ICMP, mDNS, ...). It is categorised as a Read tool in the Firegex MCP Server, which means it retrieves data without modifying state.
Register the Firegex MCP server in PolicyLayer and add a rule for get_firewall_settings: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Firegex. Nothing to install.
get_firewall_settings is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_firewall_settings rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_firewall_settings. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_firewall_settings is provided by the Firegex MCP server (umbra2728/firegex-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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